.avatar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: #000000;
  .content{
    position: absolute;
    top:50%;
    width: 100%;
    height: 750rpx;
    margin-top: -375rpx;
    image{
      width: 100%;
      height: 100%;
    }
  }
}
